Question : A cloth merchant sold half of his cloth at a 40% profit, half of the remaining at a 40% loss, and the rest was sold at the cost price. In the total transaction, his gain or loss will be:

Question : A shopkeeper sold $\frac{1}{3}$th of his goods at a loss of $15\%$. To get a profit of $10\%$ on the whole transaction, he should sell the remaining articles at a profit of:

Question : By selling 4 articles for Re. 1, a man loses 4%. Had he sold three articles for Re. 1, the profit would have been:

Question : If the ratio of the cost price and selling price of an article is 20 : 21, then what will be the profit percent?

Question : Akshay has 30 articles, each having the same cost price. He marked the price of each article at 30% above its cost price. He sold 15 of the articles at a discount of 20% each, and the remaining 15 articles at a discount of 10% each, thereby gaining a total profit of Rs. 630.